What is the GCF of 56, 80 and 140?

What's the Greatest Common Factor (GCF) of 56, 80 and 140?

Answer

GCF of 56, 80 and 140 is

4

Common factors: 1, 2, 4

4 divides all three: 56 ÷ 4 = 14, 80 ÷ 4 = 20, 140 ÷ 4 = 35 — and 14, 20 and 35 have no factor but 1 common to all of them, so no larger number divides all three.

56 = 2³ × 7

80 = 2⁴ × 5

140 = 2² × 5 × 7

Prime	56	80	140	Lowest power
2	2³	2⁴	2²	2²
5	—	5	5	—
7	7	—	7	—

— = power 0: the prime is not a factor of this number, so it cannot be in the GCF.

GCF = 2² = 4

More with these numbers

Related Calculations

GCF Table

1st	2nd	3rd	GCF
56	80	125	1
56	80	126	2
56	80	127	1
56	80	128	8
56	80	129	1
56	80	130	2
56	80	131	1
56	80	132	4
56	80	133	1
56	80	134	2
56	80	135	1
56	80	136	8
56	80	137	1
56	80	138	2
56	80	139	1
56	80	140	4
56	80	141	1
56	80	142	2
56	80	143	1
56	80	144	8
56	80	145	1
56	80	146	2
56	80	147	1
56	80	148	4
56	80	149	1
56	80	150	2
56	80	151	1
56	80	152	8
56	80	153	1
56	80	154	2

GCF for 56, 80 and 140

What's the Greatest Common Factor (GCF) of 56, 80 and 140?

More with these numbers

Related Calculations

See Also

GCF Table

FAQ

What's the Greatest Common Factor (GCF) of 56, 80 and 140?

What prime factors do 56, 80 and 140 share?

Can you get the GCF of 56, 80 and 140 two numbers at a time?

How does the GCF simplify the ratio 56 : 80 : 140?

See Also

1st	2nd	3rd	GCF
56	80	125	1
56	80	126	2
56	80	127	1
56	80	128	8
56	80	129	1
56	80	130	2
56	80	131	1
56	80	132	4
56	80	133	1
56	80	134	2
56	80	135	1
56	80	136	8
56	80	137	1
56	80	138	2
56	80	139	1
56	80	140	4
56	80	141	1
56	80	142	2
56	80	143	1
56	80	144	8
56	80	145	1
56	80	146	2
56	80	147	1
56	80	148	4
56	80	149	1
56	80	150	2
56	80	151	1
56	80	152	8
56	80	153	1
56	80	154	2

1st	2nd	3rd	GCF
56	80	125	1
56	80	126	2
56	80	127	1
56	80	128	8
56	80	129	1
56	80	130	2
56	80	131	1
56	80	132	4
56	80	133	1
56	80	134	2
56	80	135	1
56	80	136	8
56	80	137	1
56	80	138	2
56	80	139	1
56	80	140	4
56	80	141	1
56	80	142	2
56	80	143	1
56	80	144	8
56	80	145	1
56	80	146	2
56	80	147	1
56	80	148	4
56	80	149	1
56	80	150	2
56	80	151	1
56	80	152	8
56	80	153	1
56	80	154	2

1st	2nd	3rd	GCF
56	80	125	1
56	80	126	2
56	80	127	1
56	80	128	8
56	80	129	1
56	80	130	2
56	80	131	1
56	80	132	4
56	80	133	1
56	80	134	2
56	80	135	1
56	80	136	8
56	80	137	1
56	80	138	2
56	80	139	1
56	80	140	4
56	80	141	1
56	80	142	2
56	80	143	1
56	80	144	8
56	80	145	1
56	80	146	2
56	80	147	1
56	80	148	4
56	80	149	1
56	80	150	2
56	80	151	1
56	80	152	8
56	80	153	1
56	80	154	2